BIOSYNTHESIS, CHARACTERIZATION AND INVITRO ANTIBACTERIAL ACTIVITY OF SILVER NANOPARTICLES FROM SEAWEEDS AGAINST SELECTED POULTRY PATHOGENS

In the present study Silver nanoparticles were synthesized from aqueous seaweed extract of seaweeds such as of green Halimeda macroloba, brown Turbinaria conoides, and red Spyridia filamentosa and characterized by UV-Vis, FTIR, EDX, XRD and SEM. Characterization by the above said instrument analysis confirmed the presence,size and stability of silver nanoparticles.After characterization, the silver nanoparticles were tested at 25μg-ml,50μg-ml,75μg-ml and 100μg-ml concentrations to check the bactericidal activity against selected two poultry bacterial pathogens. We observed that, if the concentration of seaweed nanoparticle increases, the zone of inhibition also get increased in all the tested two bacterial pathogens against streptomycin as control and result suggested the potential use of seaweed synthesized silver nanoparticles against other pathogens.